145 lines
5.2 KiB
C
145 lines
5.2 KiB
C
/* $NetBSD: common.h,v 1.24 2016/10/20 21:25:57 joerg Exp $ */
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/*-
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* Copyright (c) 1998-2004 Dag-Erling Coïdan Smørgrav
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD: common.h,v 1.30 2007/12/18 11:03:07 des Exp $
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*/
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#ifndef _COMMON_H_INCLUDED
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#define _COMMON_H_INCLUDED
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#define FTP_DEFAULT_PORT 21
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#define HTTP_DEFAULT_PORT 80
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#define HTTPS_DEFAULT_PORT 443
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#define FTP_DEFAULT_PROXY_PORT 21
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#define HTTP_DEFAULT_PROXY_PORT 3128
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#include <sys/types.h>
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#include <limits.h>
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#include "openssl-compat.h"
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#if defined(__GNUC__) && __GNUC__ >= 3
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#define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg) \
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__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
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#else
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#define LIBFETCH_PRINTFLIKE(fmtarg, firstvararg)
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#endif
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#if !defined(__sun) && !defined(__hpux) && !defined(__INTERIX) && \
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!defined(__digital__) && !defined(__linux) && !defined(__MINT__) && \
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!defined(__sgi) && !defined(__minix) && !defined(__CYGWIN__)
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#define HAVE_SA_LEN
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#endif
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#ifndef IPPORT_MAX
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# define IPPORT_MAX 65535
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#endif
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#ifndef OFF_MAX
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# define OFF_MAX (((((off_t)1 << (sizeof(off_t) * CHAR_BIT - 2)) - 1) << 1) + 1)
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#endif
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/* Connection */
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typedef struct fetchconn conn_t;
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struct fetchconn {
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int sd; /* socket descriptor */
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char *buf; /* buffer */
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size_t bufsize; /* buffer size */
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size_t buflen; /* length of buffer contents */
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int buf_events; /* poll flags for the next cycle */
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char *next_buf; /* pending buffer, e.g. after getln */
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size_t next_len; /* size of pending buffer */
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int err; /* last protocol reply code */
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SSL *ssl; /* SSL handle */
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SSL_CTX *ssl_ctx; /* SSL context */
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X509 *ssl_cert; /* server certificate */
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const SSL_METHOD *ssl_meth; /* SSL method */
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char *ftp_home;
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struct url *cache_url;
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int cache_af;
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int (*cache_close)(conn_t *);
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conn_t *next_cached;
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};
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/* Structure used for error message lists */
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struct fetcherr {
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const int num;
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const int cat;
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const char *string;
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};
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void fetch_seterr(struct fetcherr *, int);
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void fetch_syserr(void);
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void fetch_info(const char *, ...) LIBFETCH_PRINTFLIKE(1, 2);
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uintmax_t fetch_parseuint(const char *p, const char **endptr, int radix, uintmax_t max);
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int fetch_default_port(const char *);
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int fetch_default_proxy_port(const char *);
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int fetch_bind(int, int, const char *);
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conn_t *fetch_cache_get(const struct url *, int);
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void fetch_cache_put(conn_t *, int (*)(conn_t *));
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conn_t *fetch_connect(struct url *, struct url *, int, int);
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conn_t *fetch_reopen(int);
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int fetch_ssl(conn_t *, const struct url *, int);
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ssize_t fetch_read(conn_t *, char *, size_t);
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int fetch_getln(conn_t *);
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ssize_t fetch_write(conn_t *, const void *, size_t);
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int fetch_close(conn_t *);
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int fetch_add_entry(struct url_list *, struct url *, const char *, int);
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int fetch_netrc_auth(struct url *url);
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int fetch_no_proxy_match(const char *);
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int fetch_urlpath_safe(char);
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#define ftp_seterr(n) fetch_seterr(ftp_errlist, n)
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#define http_seterr(n) fetch_seterr(http_errlist, n)
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#define netdb_seterr(n) fetch_seterr(netdb_errlist, n)
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#define url_seterr(n) fetch_seterr(url_errlist, n)
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fetchIO *fetchIO_unopen(void *, ssize_t (*)(void *, void *, size_t),
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ssize_t (*)(void *, const void *, size_t), void (*)(void *));
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/*
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* I don't really like exporting http_request() and ftp_request(),
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* but the HTTP and FTP code occasionally needs to cross-call
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* eachother, and this saves me from adding a lot of special-case code
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* to handle those cases.
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*
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* Note that _*_request() free purl, which is way ugly but saves us a
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* whole lot of trouble.
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*/
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fetchIO *http_request(struct url *, const char *,
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struct url_stat *, struct url *, const char *);
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fetchIO *ftp_request(struct url *, const char *, const char *,
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struct url_stat *, struct url *, const char *);
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/*
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* Check whether a particular flag is set
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*/
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#define CHECK_FLAG(x) (flags && strchr(flags, (x)))
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#endif
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